/Engine/Source/Editor/Sequencer/Public/MVVM/Selection/Selection.h
Main track-area selection class storing the selection of sections, layer-bars and other trac-area elements
struct FTrackAreaSelection : public [UE::Sequencer::TSelectionSetBase< FTrackAreaSelection, FWeakViewModelPtr >](API\Editor\SequencerCore\MVVM\Selection\TSelectionSetBase)